Serpophaga subcristata
Silhouette: Emily Willoughby · PhyloPic
In 3 days ~20% in a week ~30%
The white-crested tyrannulet (Serpophaga subcristata) is a small species of bird in the family Tyrannidae, the tyrant flycatchers. It is found in Argentina, Bolivia, Brazil, Paraguay, and Uruguay. The white-crested tyrannulet was originally described as Sylvia subcristata, thought to be a member of what at the time was the Old World warbler family.
Subspecies S. s. munda was originally described as a full species. BirdLife International's Handbook of the Birds of the World lumped it into the white-crested tyrannulet in 2020. The Clements taxonomy followed suit in 2022 as did the South American Classification Committee of the American Ornithological Society and the International Ornithological Committee in 2023. In addition, what is now Straneck's tyrannulet (S. griseicapilla) was long confused with the white-crested tyrannulet but was eventually recognized as a full species based largely on their very different vocalizations.
The white-crested tyrannulet is 11 cm (4.3... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | El Palmar National Park | 🇦🇷 Argentina | |
| 2 | Serra da Canastra National Park | 🇧🇷 Brazil | |
| 3 | Iberá National Park | 🇦🇷 Argentina | |
| 4 | Itatiaia National Park | 🇧🇷 Brazil | |
| 5 | El Impenetrable National Park | 🇦🇷 Argentina | |
| 6 | Chapada Diamantina National Park | 🇧🇷 Brazil | |
| 7 | Amboró National Park | 🇧🇴 Bolivia | |
| 8 | Serra dos Órgãos National Park | 🇧🇷 Brazil | |
| 9 | Iguazú National Park | 🇦🇷 Argentina | |
| 10 | Iguaçu National Park | 🇧🇷 Brazil |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Buenos Aires | 🇦🇷 Argentina | |
| 2 | Rosario | 🇦🇷 Argentina | |
| 3 | Cochabamba | 🇧🇴 Bolivia | |
| 4 | Montevideo | 🇺🇾 Uruguay | |
| 5 | Curitiba | 🇧🇷 Brazil | |
| 6 | Mendoza | 🇦🇷 Argentina | |
| 7 | Campinas | 🇧🇷 Brazil | |
| 8 | Porto Alegre | 🇧🇷 Brazil | |
| 9 | Belo Horizonte | 🇧🇷 Brazil | |
| 10 | Asuncion | 🇵🇾 Paraguay |
With luck
About 10% of wildlife watchers report a White-crested Tyrannulet sighting in El Impenetrable National Park on a given day, based on 16 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 177th most-seen of the 219 birds we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.
June–July and September–October
In those months about 10% of wildlife watchers report a White-crested Tyrannulet in El Impenetrable National Park on a given day, against under 5% in January–May, August and November, the lowest months. Those are among El Impenetrable National Park's driest months, with about 45 mm of rain a month against 120 mm in March. December has too few records to rate.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most White-crested Tyrannulet sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
5th of 10
Of the 10 parks where we can rate White-crested Tyrannulet sightings, El Impenetrable National Park ranks 5th at about 10%. The best odds are in El Palmar National Park (Argentina, about 50%), Serra da Canastra National Park (Brazil, about 20%) and Iberá National Park (Argentina, about 20%).
GBIF citizen-science records
It is estimated from how often the White-crested Tyrannulet is recorded against all the birds logged in El Impenetrable National Park (16 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
